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Top-Rated Deck, fence, patio or porch clean and sealers in Princeton - Updated Nov 2026

Avatar for Sunlight Contracting
Sunlight Contracting
4.8(
167
)
Deck, Fence, Patio or Porch - Clean and Seal

Serving Princeton, NJ and surrounding areas

Approved

In business since 1987

Free estimates

Emergency services offered

"John and Lou were very professional and did a great job on power washing, sanding, and staining my large deck. They went out of their way to make sure everything worked out. The deck looks amazing now, it's the best I've seen it look in many years. John had great recommendations to make based on his expertise such as the stain type and color to use as well using great methods to ensure the final product came out excellent. Would hire again and recommend their services to anyone."
Big Lou
White washed brick
Accent wall
Stairway
Sunroom

+65

Response time1 day
4 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for NB Woodworks, LLC
NB Woodworks, LLC
5.0(
26
)
Deck, Fence, Patio or Porch - Clean and Seal

Serving Princeton, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 1875

Free estimates

Warranties offered

"Anthony Nastasi of NB Woodworks, LLc, has our highest recommendation. He has worked with us over the past year on a variety of projects aimed at refurbishing and improving our home. This has included exterior trim replacement, replacing a box window with a French door and side light unit, and replacing a large unusually sized window. He also built a beautiful mahogony deck. Indoors, he installed a french door which included fine trim work. In addition, he hired excellent subcontractors to powerwash and paint our home and build a patio, porch and walks. We highly recommend Anthony's carpentry skill, as well as his problem solving, planning and coordination skills. He is also a dependable, honest person of fine character."
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.
.
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Our Work

+34

Response time1 day
4 neighbors recently requested a quote
Recommended by57%of homeowners
Avatar for Red White and Blue Painting Enterprise, LLC
Red White and Blue Painting Enterprise, LLC
4.9(
119
)
Deck, Fence, Patio or Porch - Clean and Seal

Serving Princeton, NJ and surrounding areas

Approved

In business since 2018

Free estimates

Warranties offered

"I contacted Red White and Blue Painting to paint my kitchen cabinets. Beginning with our initial meeting, I was impressed with Eric, the owner. He explained the entire process. Eric and his assistant, Rich, were amazing. They were punctual, friendly, and worked diligently. They left my kitchen clean, no paint drippings nor dust. Given their attention to detail, the labor intensity of the job, and quality of the work product, the price was definitely fair. OMG, my cabinets look fabulous! The paint job was flawless. Now my kitchen looks elegant and magazine worthy. Eric and Rich did an amazing job and exceeded my expectations. Without hesitation, I will hire Red White and Blue Painting again and refer them to everyone. Best contractor ever!"
exterior deck (before)
exterior deck
House uplift
Metal Roof 1940s barn house
Barn house outcome

+41

Response time4 hrs
Response rate97%
Recommended by92%of homeowners
Avatar for Best Builder Construction
Best Builder Construction
5.0(
53
)
Deck, Fence, Patio or Porch - Clean and Seal

Serving Princeton, NJ and surrounding areas

Approved

In business since 2024

Free estimates

Emergency services offered

"I would recommend this company to others. They are professionals that go above and beyond expectations. There are few roofing companies willing to come out to clean gutters on an old house. Their workman was quick and efficient while being respectful and friendly. I am so glad to find a company with great customer service"
Roof Instalation
Chimney
Replaced Roof
Siding
Siding Instalation

+2

Response time5 hrs
Response rate100%
27 neighbors recently requested a quote
Avatar for JBDL House Painting and More
JBDL House Painting and More
4.6(
26
)
Deck, Fence, Patio or Porch - Clean and Seal

Serving Princeton, NJ and surrounding areas

Approved

In business since 2018

Free estimates

Warranties offered

"They are very cautious of covering all areas to avoid damage or dusting in the surroundings ares to the job performance. The really know what are doing and advise how to do the best remodelación or restauración. Like the clean way they manage to do the painting job after repairing the drywallâ s to get a Super smooth surface."
Response time9 hrs
Recommended by68%of homeowners
J Power Home Improvement, LLC.
4.3(
6
)
Deck, Fence, Patio or Porch - Clean and Seal

Serving Princeton, NJ and surrounding areas

Approved

In business since 2012

Free estimates

Offers commercial services

"We set an appointment for the estimate and was actually early for the appointment. He quoted me a fair price and was hired. He came today with a helper. The problems were fixed. The areas were cleaned up. Both were friendly."
Roof Repairs and Installs
Roof Repairs and Installs
Roof Repairs and Installs
Roof Repairs and Installs
Roof Repairs and Installs

+14

Response time7 hrs
2 neighbors recently requested a quote
Recommended by66%of homeowners
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FAQs for deck, fence, patio or porch clean and seal projects in Princeton, NJ

You should clean your deck before sealing it. Cleaning before refinishing is critical. If you don’t remove dirt and debris, you'll trap moisture in the wood, which prevents the new sealer from working correctly and can lead to costly repairs. Whether you need to sand, power wash, or sandblast depends on your deck's condition.

Sealing and staining your deck are essential maintenance methods that protect and beautify your outdoor space. Stain adds rich color and guards against fading, while sealant fortifies the wood against moisture and weather damage. Wood type, climate, deck age, and the degree of existing damage determine whether your deck benefits from one or both treatments. Using both options extends your deck’s durability and enhances its overall appearance.

Power washing and sealing your deck costs $500 to $1,700. This process combines the removal of stubborn dirt and debris with a protective seal that preserves the wood’s integrity. Effective cleaning eliminates harmful buildup, and a proper seal prevents moisture damage and wood decay, ensuring long-term durability and reducing future repair expenses.

Your deck must be sealed every one to three years to maintain its strength and appearance. Regular sealing is essential to protect the wood against moisture, mold, and harmful UV rays. A consistent sealing schedule prevents rapid deterioration and costly repairs. Inspections should be performed annually to determine if the protective layer remains intact, extending the life of your deck.

Leaving your deck untreated compromises its structural integrity and safety. An unprotected deck rots quickly due to moisture and environmental exposure, which means that neglecting sealing results in rapid decay and expensive replacement costs of $4,125 to $11,650. Sealing your deck is essential for maintaining its durability and protecting your home.

The sealant on your deck dries within a few hours and reaches full cure within 72 hours before regular use. It is essential to wait until the complete curing period to ensure the protective layer fully sets and resists weather and foot traffic. Proper drying guarantees that your deck is fully protected against moisture and environmental damage, ensuring lasting quality.

The Princeton, NJ homeowners’ guide to deck, fence, patio or porch clean and seals

From average costs to expert advice, get all the answers you need to get your job done.